The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 04, 2009
Filed:
Jul. 18, 2007
Hideto Motoshima, Kanagawa, JP;
Kiyoshi Yanase, Kanagawa, JP;
Yasushi Umihira, Kanagawa, JP;
Tsutomu Hamada, Kanagawa, JP;
Norihiro Sakumichi, Kanagawa, JP;
Hideto Motoshima, Kanagawa, JP;
Kiyoshi Yanase, Kanagawa, JP;
Yasushi Umihira, Kanagawa, JP;
Tsutomu Hamada, Kanagawa, JP;
Norihiro Sakumichi, Kanagawa, JP;
NEC LCD Technologies, Ltd., Kawasaki, Kanagawa, JP;
Abstract
A semi-transmissive type liquid-crystal display device suppresses the reduction and corrosion of the transmission or common electrode due to the cell corrosion reaction with a simple method. In each pixel region, the reflection electrode is formed over the glass plate, where the interlayer insulating film and the barrier metal film intervene between them. The reflection electrode is electrically connected to the transmission electrode by way of the barrier metal film. The transmission electrode and the corresponding scanning line thereto are apart from each other at a distance of 2 μm (preferably, 3 μm) or greater. A developer solution penetrating through the crack formed in the barrier metal film does not reach the transmission electrode (or common electrode), preventing the reduction and corrosion of the transmission or common electrode.